I've just finished seeing BB and TDK again today in anticipation of seeing TDKR day after. I'm certainly very much looking forward for it. I've also seen Following a week ago and found it be a rather decent movie which is pretty underrated, though by no means a contender for this poll.
For me it has to be The Prestige by a decent margin. It's my second most favourite movie ever after Goodfellas. Just a staggering cinematic achievement tbh. There's an awesome subtlety in dialogue in The Prestige which is absent in the more sensational style of writing adopted in TDK and Inception, which to be fair are pretty amazing movies.
I'm so glad I'm growing up in the Nolan era, if truth be told.